A pillar with a flared top and bottom and a diamond just above the bottom.
Correct. A robot with a square head and pointed feet.
Correct. A zig-zag shape like a snake.
No, not that one. This shape is flag on the left, angles down on the right, and then slightly back up.
No, incorrect. Remove the last two selections.
Now add the shape with a downward slope on the bottom.

Outcome: successful
Speaker comments: That actually went really well. The bot made a wrong choice, made another wrong choice without removing the first one despite being told to, and then actually removed both wrong choices when told to. That was great!